/Engine/Source/Runtime/Engine/Classes/Engine/Engine.h
Notification of network lag state change messages.
virtual void HandleNetworkLagStateChanged ( [UWorld](API\Runtime\Engine\Engine\UWorld) * World, [UNetDriver](API\Runtime\Engine\Engine\UNetDriver) * NetDriver, [ENetworkLagState::Type](API\Runtime\Engine\Engine\ENetworkLagState__Type) LagType )